Carbureter.



Patented Feb. s, 1910.

:Iii 7 W. P. KINGSBURY.

APPLIGATIOI FILED HAY '7, 1909.

WILLIAM P. KINGSBURY, 0F PORT ARTHUR, TEXAS.

CARBUR-ETER.

Bpecicaton of Letters Patent.

Patented Feb. 8, 1910.

Y Appiioation led Hay 7. 1909. Seri-a1 No. 494,653.

To all 'whom it may concern:

Be it known thatl I, lViLLiAM P. Kinosistrip: a citizen of the United States, residing at Port Arthur, in the county of J eiferson and State of Texas, have invented certain new and useful Iin rovements in Carbureters; and I do here y declare the following to ne a full, clear, and exact description of the invention, such as ivill enable others skilled in the art to which it appertaiiis to malte and use the same.

My invention relates to carbureters or vaporizers for use on internal combustion engines.

The principal object of the invention is to thoroughly and quickly mix the gasolene and air with apparatus which is both simple in construction and economical to manuacture.

Other objects of the invention will become apparent from the following description.

he invention consists primari!Y in the peculiar construction of the air-inlet valve which is opened by the suction created by the piston in the cylinder of the engine. Said valve is i-i'ovided with a hollow stein and radial tributary passages in its head communicating with the passage in the stem and opening on the periphery of sail head where they are normally closed by the valve seat but are exposed .vhen the valve is raised or o ened. lac-ans are provided for feeding gaso ene through said stern and tributai passages when the valve is raised or opene The result is that when the valve is opened, the asolene is fed or discharged radially in all directions from the eripliery of the valve head directly into t e current of air drawn into the mixing chamber by the suction `which raises said valve whereby the complete mixina of the gasoleney and air is effected in the s iortest possible time.

The invention also consists in the features of construction and combinations of parts hereinafter described and specified in the claims.

In the accompanyingT drawing ill ing the preferred enibofliaa-nt of 11st ril Iii the drawing, 1 designates the iiiain portion of the casing which contains the mixing chamber 2 and gasolene chamber 3 l connected by the passage '-1. The bottom of the mixing chamber is formed by a separate casting 5. preferably screwed into the main casing. The top of the gasolene chamber consists of a separate nut G also screwed into place. The separate casting 5 is provided with the air-inlet oiening 7 and the scat 8 for the air-inlet va ve 9. An outlet passage 10 for the mixed gasolene is provided in the main casing and is equipped with the usual butterfly valve 11 for regulating the speed of the engine. The passage 12 in the wall of the gasolene chamber is designed to be connected with a suitable.

source of gasolene supply.

The air-inlet valve is provided with a hollow stem i3 extending through the mixing chamber and fitting into the restricted portion 4 of the passage 4 connecting said mixing chaiiiher with the gasolene chamber. The head l of said valve contains radial tributary passages 15 from the passa e 16 in the stem and opening on the erip. er ot' the head. fis shown in Fig. 2, t e pcrip ery of the head contacts with the valve-seat 8 in the separate casting 5 when the valve is closed and, when in this position, the openings of sai l '.z'ibutary passages in the periphery of the valve head are closed by said valve-seat. The valve is normally held down in its seat by a coiled spring 17 abutting at. its opposite ends against the head of the valve and the iipper ivall of the mixing chamber. Said air-inlet valve is preferably ina-ie in only trio pieces, the larger integral art 18 comprising the hollow stem 13, the ovver portion of the head and a downwardly proecting portion 18 which is centered in a bri gc 19 in the separate casting 5. This part 18 of theyvalve contains passages 15* comprising parts of the tributary passages 15 and extending from the assage 16 in the stem and opening on to the at upper surface of the loiver portion 14* of the valve head 14.

ri' inilfhe supplemental part of this valve comventicn: Figure 1 is an elevation at' the l prises a disk-shaped piece 14 constituting carbu :'cter.

Fig, .2 is an enlarged amiral the upper portionof the valve head. This sectional vien` thereof. Fig. 3 is a detailed disk-shaped piece is concave on its under view of the integral portion of the air-inlet j surface, as at 15b, and has small .radial valve, and Fig. 4 is a detailed-view ot the grooves 15 in the lower surface of its pesiipplemental part of the head o1 .said valve. i riphery, said concave surface and grooves completing the tributary passages 15. The supplemental part or disk is held in place by a nut 20.

The upper end of the passage 4 leading from the mixing chamber to the gasolene chamber is enlarged, as at 4b. In it is ar ranged a pin valve 21 formed with a projecting collar 22 adapted to seat over and close the upper opening of a passage 23 in a sleeve 24 preferably screwed into the npper extremity of said enlarged portion of the passage 4. Said pin valve is normally held down in a closed position by a coiled spring 25 arranged upon the upper portion of its stem and abutting against the collar 22 and the under face of the nut 6, The lower extremity of the pin valve is arranged in a cup 2G formed in the upper end of the hollow stem 13 of the air-inlet valve. The sleeve 24 is secured in the desired esition by a lock nut 27 which allows for the sleeve being adjusted to take up wear on the ends of the pin valve 21 and valve stem 13. The bottom of the enlarged chamber 4b is cupped, as at 4, adapted to deliver the gasolene from said chamber to the cup 2G in the upper end of the valve stem 13.

'It will be readily understood from this description and the accompanying drawing,

particularly Fig. 2. that when the air-inlet valve is raised by the suction created in the cylinder of the engine, the stein 13 will raise the pin valve 21 thereby allowing gasolene to flow from the gasolene chamber 3 down around said pin valve, into the enlarged chamber 4h. When said air inlet valve moves down into closed position, the pin valve 21 will also close and the gasolene in the chamber 4b will pass into the passage 16 of the valve stem 13 via the cup 2G which is not closed by the lower end of the pin valve 21 when the parts are in that position. On the next; upward movement of the air inlet valve the gasolcne will be fed from the passage 16 in its stein throughthe radial tribiitary passages 15 into the mixing chamber. The gasolene is discharged by said radial tributary assages at points all around the valve hea directly into the current of air which is being drawn by suction into the mixing chamber through the air inlet open- 7. v m claim l. In a carbure-ter, the combination, with c l. casing having a. mixing chamber, an air .inlet assage leading thereto, an outlet past sage or the mixed gases, a gasolene cham'- ber, and a passage leading from the gasolene chamber to the mixing chamber, of a springpressed valve normally covering the air inlet passage and having'a hollow stem fitted in nid lissage extending from the gasolene cham tothe mixing chamber, a reciprocating valve also arranged in'said passage n d adapted to control the flow of gasolene from the gasolene chamber into said passage,.said latter valve being operated by the stem of the air inlet valve, but arranged above and out of contact therewith wien said air inlet valve is closed, and means for feeding the gasolene from the hollow stem of saidD air inlet valve into the mixing chamber when said valve is opened. 2. In a carbureter, the combination, with a easing having a mixing chamber, an air inlet assage leading thereto, an outlet passage or the mixed ases, a asolene chamber, and a passage eading rom the gasoleiie chamber to the inixin chamber, of a spring-pressed valve norma ly covering the air inlet passage and having a hollow 'stein fitted in said passage extending from the gasolene chanil'ier to the mixing chamber, said passage having an enlarged chamber formed therein above the eener end ofsaid hollow valve stein, a pin valve for controlling the flow of gasolcne from the gas'olene chamber and terminating in said enlarged chamber above the upper end of the stem of the air inlet valve, said pin valve being operated by the stem of the air inlet valve when the latter isopened, and means for feeding the O'asolene from the hollow stem of said air in et valve into the mixing :hamber when the latter valve is o ned.

3. In a carbureter, the com ination, with a casing having a mixing chamber, an air inlet passage leading thereto, an outlet pas sage for the mixed gases, a. vgasolene chamber, and a passage leading from the gasolene chamber to the mixing' chamber, of a spring-pressed valve normally covering the air inlet passage and having a hohow stem tted in said passage extending from the gasolene chamber to the mixing chamber, said last mentioned passage having an enlarged chamber with a cupped bottom formed therein above the up er end of said hollow valve stem which is a so cup ed, a pin valve for controlling the flow o gasolene from the gasolene 'chamber and terminating in said .enlarged chamber above thc upper end of the stem of the air inlet valve, said pin valve being o erated by the stem of the air inlet valve w en the latter is opened, and means for feeding the gasolene from the hollow stem of said inlet valve into the mixing chamber when the latter valve is opened.

4. In a carbiireter, the combination, with a casing containing a mixing chamber, an air-inlet passa-ge leading' thereto, an outlet passage t ierefrom for the mixed gasesa gasolene chamber, and a passage leading radial tributary passages leading from the passage in the stem and opening on d y?- A iipbery of the head, the openings of said tributary passages being normal y covered by the valve-seat when the valve is closed, said hollow stein being fitted in the passage leading from the mixing chamber to the gasolcne chamber, and a reciprocating valve also arranged in said last nientioned passage and adapted to be actuated by the stein of the air-inlet valve when the latter is opened whereby gasolene is fed from the gasolene chamber through the hollow stem and radial passages of said air-inlet. valve.

5. ln a carburetei', the combination, with a casing containing a mixing chamber, an air-inlet passage leading thereto, an outlet passage therefrom for the mixed gases,.a gasolene chamber, and a passage leading from the mixing chamber to the gasolene chamber, of a spring-pressed valve arranged in said mixing chamber so as to normally cover the air-inlet. passage, said valve cornprising a hollow stem and a head having radial tributary passages leading from the passage in the stern and opening on the p c: riphery of thc head, the openings of said tributary passages being normally covered by thc valve seat when the valve is closed, .said hollow stem beingr fitted in the passage leading from the mixing chamber to the gasolene chamber, and having a cup forined in its end, and a spring-pressed in-valve also arranged in said last nientione passage Awith its lower end extending into said cup,

said pin-valve ada )ted to bc actuated by the stem of the air-inlct valve when the latter is opened whereby gasolene is fed from the gasolcnc chamber through the hollow stem and radial passages of said air-inlet valve.

6. ln a carburetor, the combination. with a casing containing a mixing chamber, any

air-inlet passage leading thereto, an outlet passage therefrom for thc mixed gases, a

rom the mixing chamber to the gasolene chamber, of a spring-pressed valve arranged insaid inixino' chamber so as to normally cover the air-inlet passage, said valve co1nprising a hollow stein and a head having` radial tributary passages leading from the passage in the stein and opening on the periphery of the head, the openings of said i tributary passages being normally covered by the valve seat when the valve is closed, said hollow stem being fitted in thc passage leading from the mixing chamber to the gas' olcne chamber, an adjustable sleeve in the up ci' end of said lust mentioned passage, and) a spring-pressed iii-vulve arranged in said sleeve with its ower end extending down near to thc upper end ofzthe stem of the air-inlet valve, said pinwalvc being operated by said stein of the air-inlet valve when the latter is opened whereby gasolene lsaid mixing chamber so as to gasolenc chamber, and a passage leading is fed from the gasolene chamber through the hollowstein and radial passages of said airfilet valven 'i'. in a carbureter, the combination, with a casing containing a mixing chamber, an air-inlet passage and an outlet passage for the mixed gas, of a spring-pressed valve arranged in said mixing chamber so as to normally cover the air-inlet passage, said valve comprising a hollow stem, and a head having radial tributary passages leading from the passage in said stem and opening on the periphery 'of said head where they are Vcovered by the valve-seat when the val-ve is closed, said valve being made in two pieces, one comprising the stem and lower portion of the head and provided with a passage leading from thc passage in the stem and opening on the u ppcr face of said lower portion or the head, said last mentioned passages constituting parts of the tributary passages in said head, the supplemental part of the valve being made in the form of a disk constituting the upper portionof the head, said disk being concave on its lower surface and having radial grooves arranged in the under face of its periphery, said concave portion and grooves completing the radial tributary passages in said head, means to retain said supplemental part in proper position relative to the lower or tion of the head, and means to feed vaso ene through the hollow stein of said valve and tributary passaffes to the interior of the mixing chamber w en said valve is moved out of its seat.

8. In a carbureter, the combination, with a casing containing a mixing chamber, an air-inlet passage, a bridge arranged in said passage, and an outlet passa "e for the mixed gas, of a spring-pressed valve arranged in normally cover the air-inlet passage, said valve comprising a hollow stein and a head having radial tributary passages leading from `the passage in the stem and opening on the periphery-of thc'head, the openings of said tributary als` sages being normall covered by the va veseat, when thc valve is closed, said valve also ,havin a downwardly extendinfr portion g bridgne for the.

titted in an opening in said pur ose of centering the valve, and means to eed gasolenethrougli said hollow. stem and tributary passafves to the interior of the mixinol chamber when the valve is moved out oiP its seat.'

In testimony whereof, I aix my signa ture, in presence of two witnesses.

wiLLiAM P. iriiaisiniinr.A

Witnesses: Gronau L. Palomino, Cime. R. Snvnnson. 

